57388911 divided by 648 
We want to figure out the number of times 57388911 can be divided by 648.

Moving on to step 1:
The number 648 fits into 5 0 times, leaving a remainder of 5.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 5 to get 5.
Append the next digit (7) from the dividend to 5 and continue with: 57 / 648

On to step 2:
648 can be fit into 57 0 times, resulting in a remainder of 57.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 57 and we're left with 57.
Include the next digit (3) from the dividend after 57, then repeat: 573 / 648

Advancing to step 3:
648 goes into 573 0 times with a remainder of 573.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 573 leaves us with 573.
Grab the next digit (8) from the dividend, add it to 573, then carry on: 5738 / 648

Let's proceed to step 4:
The number 648 fits into 5738 8 times, leaving a remainder of 554.
Record the quotient 8 as the next digit in the result. 
Result so far: 8.0
Subtract 5184 from 5738 to get 554.
Grab the next digit (8) from the dividend, add it to 554, then carry on: 5548 / 648

Going ahead to step 5:
The number 648 fits into 5548 8 times, leaving a remainder of 364.
Use 8 as the next digit of our solution. 
Result so far: 88.0
If we take 5184 away from 5548, we end up with 364.
Append the next digit (9) from the dividend to 364 and continue with: 3649 / 648

Moving on to step 6:
648 can be fit into 3649 5 times, resulting in a remainder of 409.
The next digit of our result is 5. 
Result so far: 885.0
The remainder is 409 after subtracting 3240 from 3649.
Append the next digit (1) from the dividend to 409 and continue with: 4091 / 648

Moving on to step 7:
648 can be fit into 4091 6 times, resulting in a remainder of 203.
The number 6 becomes the next digit in our result. 
Result so far: 8856.0
Subtracting 3888 from 4091 leaves us with 203.
Grab the next digit (1) from the dividend, add it to 203, then carry on: 2031 / 648

Moving on to step 8:
When dividing 2031 by 648, we get 3 with a remainder of 87.
Use 3 as the next digit of our solution. 
Result so far: 88563.0
If we subtract 1944 from 2031, we get 87.
Since there are no more digits in the dividend, we add a zero to the remainder making it 870, and continue the process.

Step 9:
The number 648 fits into 870 1 times, leaving a remainder of 222.
Use 1 as the next digit of our solution. 
Result so far: 88563.1
Subtracting 648 from 870 leaves us with 222.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2220, and continue the process.

On to step 10:
648 can be fit into 2220 3 times, resulting in a remainder of 276.
Write down 3 as next digit of the result. 
Result so far: 88563.13
If we take 1944 away from 2220, we end up with 276.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2760, and continue the process.

Step 11:
The number 648 fits into 2760 4 times, leaving a remainder of 168.
Record the quotient 4 as the next digit in the result. 
Result so far: 88563.134
The remainder is 168 after subtracting 2592 from 2760.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1680, and continue the process.

Going ahead to step 12:
648 can be fit into 1680 2 times, resulting in a remainder of 384.
The next digit of our result is 2. 
Result so far: 88563.1342
Subtracting 1296 from 1680 leaves us with 384.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3840, and continue the process.

Step 13:
If we divide 3840 by 648, we get 5 and a remainder of 600.
The number 5 becomes the next digit in our result. 
Result so far: 88563.13425
The remainder is 600 after subtracting 3240 from 3840.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6000, and continue the process.

Let's proceed to step 14:
The number 648 fits into 6000 9 times, leaving a remainder of 168.
Use 9 as the next digit of our solution. 
Result so far: 88563.134259
The remainder is 168 after subtracting 5832 from 6000.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1680, and continue the process.

Going ahead to step 15:
1680 divided by 648 is 2 with a remainder of 384.
The next digit of our result is 2. 
Result so far: 88563.1342592
If we subtract 1296 from 1680, we get 384.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3840, and continue the process.

Moving on to step 16:
The number 648 fits into 3840 5 times, leaving a remainder of 600.
The number 5 becomes the next digit in our result. 
Result so far: 88563.13425925
Subtracting 3240 from 3840 leaves us with 600.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6000, and continue the process.

Our division results in 88563.13425925 with a remaining 6e-07.